This Peerless-AV WMJ022 22.5" Wall Arm for Jumbo 2 Wall Mounts has a 1-1/2"-11.5 NPT threaded fitting for a Peerless flush mount tube or an extension column. The arm comes with wood screws.
1 1/2" 11.5 NPT threaded fitting accepts flush mount tube or extension column
UPC: 735029195719